Work-holding block.



G. A. BADER.

WORK HOLDNG BLOGK. APPLIOATION FILED MAR.13,1913.

LLQIQ.

Patented Aug. 26, 1913.

Hnwnmm g .M @adm lrAm/m] into eoperative relation with the liXed jaw substantially different have shank of the clamp, and then give the block a half turn about a vertical axis.

When theA work is to be held. in vertical position the block is placed upon the clamp withvits face v5 against the shank 13, and the flanges 19 and 20 engaging the In this position either may be brought d a horizontal work-engaging groove in its front face; the two vpairs of lianges being adapted to coperate altermately with the shank of a work-clamp according as one or the otherof 'said grooves 14 o t eclamp, and thus the work l5 may is to be employed in holding work against a be held 1n vert1cal posit-ion, as shown in jaw of the work-clamp. F1' 3 2.'A work-holding block havin a body of the general form of a parallelepiped, and provided with two clamp-engaging flanges projectin upwardly at the angles between lts upper ace and its front and rear faces, respectively; horizontal work-holding` grooves of different sizes in its front and rear faces, respectively; two clamp-engaging flanges projecting downwardly at tlieangle between the lower face and the two lateral faces of the block, respectively; work-holdin grooves of di'erent sizes in the lateral aces of the block, respectively;

i lhe flanges 17 and 18 are interrupted, as above described, by the grooves 2l and 22, so that each of these flanges constitutes two separate abutments for engagement'with the shank of the clamp. Their operation is not from that of the un interrupted flanges 19 and 20, however, and while the latter flanges are shown as continuous it will be understood that this vis not essential to their operation.

While for convenience of description I referred to certain faces of the block as constituting specifically its upper and lower faces, and its forward, rear, and lateral faces, it will be understood that the positions of these several faces are interchangeable, and that where I have used corresponding terms in the claims they are intended merely to define the relative positions of the different parts of the block.

I claim L A work-holding bloclr havin a body of the general form of parallelepiped, and

coperate with the shank of a en the vertical grooves are in coperative relation with a jaw or the clamp, and the anges adjacent to the lower face being adapted to coperate with the shank of the work-clamp when the horizontalgrooves are in cooperative relation with the jaw of the work-clamp.

GUsTAv nanna.

adapted to work-clamp wh provided with two clamp-engaging anges Witnesses: project-ing upwardly at the angles 'between FARNUM F. Donsni, Y itsupper face and its front and rear faces D. GURNEE.

and two vertical the flanges adjacent to the upper face being 

